Friction shock-absorbing mechanism.



J. F. OCONNOR.

FRICTION SHOCK ABSORBING MECHANISM.

APPLICATION FILED MAR. 12. I918.

Patented Apr. 29, 1919.

Lsmm'eo INVENTOR. 70/ZJ2/F 06.212110)" BY J H ATTORV x and Qfii'h 111001; B we con" W 2181K I Fiction s 'LQEBSWLK132212153. "ear shape 11 1s a mar fahnw r ml with the Er-ant 1525, 'lf oni; filower H, the snack absi 1g mechzm sr;v

interposed between me fdflmvers Mme 0 mm'e The shack absci", mas i'lfinism is the draw bar 15 in any suitable; 1' as by the yoke st a 16 and Hi parm n apemjmon, are s-liwmrlici g 2a sacidi pu'zrlzqa 1'? bolted m t0 the sndi (5 as in es mi H14 (1 sins 10 move mm'wzu'dly an:

absmbingg meci azmism propel, fi'i szinn blag 1169s a centm? fi'ict'irm post 1 m the ciion Necks T rmrw x the sauna H.133 and an a which GB 91:1 a'rn'nfie bi-ztween th -e refm'mfi.

a tnpe'x'eri section 430.

I I L 'i. the inchcn U100 cause oi the blunt angle of the \vedging faces 22) and 12th etc.. with respect to the axis ofthe mechanism. This. in turn. permits the blocks 1% to be forced outwardly by expansion of the. spring 1), In this way, I are enabled to obtain a certain release and it is also evident that 'I obtain an exceedingly high capacity, due to the comparatively acute angle oi the. wedging faces and 31 with respect to the axis of the shell. The mechanism may be malmtaetured at comparatively small expense; the metal usually employed in forming a spring casing or cage is eliminated; and the construction is also such that the. spring l) may be of that type commonly known as a class G spring and the over-all length of the friction mechanism designed so as to be accommodated between the usual spacing of stops provided for friction gears.

I claim:

1. ln a friction shock absorbing mechanism, the combination with afriction post having a tapered section at one end; of an outer single piece friction shell having a plurality of interior wedge faces separated longitlulinally ol the shell; a plurality of friction, blocks interposed between said post moaere and said shell, each of said blocks having an interior Wedge face engaging and co ope a'ble with the tapered post and a plu rality of exterior Wedge faces engaging and cooperable with a plurality'of the wedge faces of the shell; and a spring to resist movement of said blocks relatively to the post.

2. In a friction shock absorbing mechanism, the combination with a central frict-ion post having a tapered section; of an outer friction shell having a series of sets of wedge faces on the interior thereof, each set comprising a plurality of wedge faces and arranged at a relatively blunt angle with respect to the axis of the shell; a series of friction blocks, each block having an inner wedge face cooper-able with the tapered section of the post and a set of wedge faces engaging. and cooperable with one of the sets of Wedge faces of the shell; and spring means for resisting relative movement be tween the blocks and post.

In witness that I claim the foregoing I have hereunto subscribed my name this 26th day of Feb, 1918.

JOHN F. OCONNOR. 

